„babeș-bolyai”,cluj-napoca facultatea de chimie și inginerie

UNIVERSITATEA „BABEȘ-BOLYAI”,CLUJ-NAPOCA
FACULTATEA DE CHIMIE ȘI INGINERIE CHIMICĂ
ȘCOALA DOCTORALA DE INGINERIE CHIMICĂ
Scientific Advisor
Prof. dr. eng. Petru ILEA
PhD Student
Eng. Alexandru-Horaţiu MARINCAŞ
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2.
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Synthesis of LiMyMn2-yO4 (M=Ti, Ni, Ge, Fe, Zn),
for lithium-ion batteries cathode.
Physical and electrochemical characterization of
synthesized oxides
Correlation between synthesis method, structure
and electrochemical properties synthesized oxides
Develop of novel aqueos electrolytes for Aqueos
Rechargeable Li-ion batteries (ARLB)
Synthesis and electrochemical characterization of
electrocatalysts used in oxygen reduction reaction
(ORR)
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Energy density(Wh/kg) vs specific density (Wh/l) for some batteries
B. Scrosati, K.M. Abraham, Walter van Schalkwijk, J. Hassoun, Lithium Batteries, Advanced
Technologies and Applications, Wiley, 2013
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Energy density, voltage, specific capacity for active cathode materials
B. Scrosati, K.M. Abraham, Walter van Schalkwijk, J. Hassoun, Lithium Batteries, Advanced
Technologies and Applications, Wiley, 2013
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B. Scrosati, K.M. Abraham, Walter van Schalkwijk, J. Hassoun, Lithium Batteries, Advanced
Technologies and Applications, Wiley, 2013
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Material
Abbreviation
Uses
LiCoO2 (60%
Co)
LCO
LiMn2O4
LiFePO4
LiNiMnCoO2
(10-20% Co)
LiNiCoAlO2
(9% Co)
Li4Ti5O12
LMO
LFP
NMC
-cellphone
-laptops
-digital camera
-power tools
-medical devices
NCA
-electric propulsion
systems
LTO
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G.A. Nazri, G. Pistoia, Lithium Batteries-Science and Technology, Springer, 2003
-Pechini process;
-chemical coprecipitation;
-sol-gel method;
-solid state reactions;
-hydrothermal reactions;
-inverse microemulsions method.
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Advantages
Disadvantages
-low fabrication cost
-oxygen vacancies
formation during slow
dissolution of manganese in
electrolyte
-enough manganese sources
-Jahn-Teller structural
distorsion
-easy fabrication process
-envirommental friendly
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a)
b)
Figura 4 - LiMn2O4 (a) , respectively aLiCoO2 (b) performance
http://batteryuniversity.com/learn/article/explaining_lithium_ion_chemistries
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Alexandru-Horaţiu Marincaş, Firuţa Goga, Sorin-Aurel Dorneanu, Petru Ilea,
Sol-gel synthesis of nanosized LiMn2O4 particles and their electrochemical
characterization in aqueous electrolyte, Romanian Chemical Engineering
Society Bulletin, under review
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